A ring saw device used in the installation of manholes to afford proper installation height and angular inclination compliant to street surface. The ring saw cutting device has a support ring base that acts as an elevated and inclination guide with a dual axis cutting assembly rotatably disposed therewithin.
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1. A ring saw cutting device for manholes comprises,
an annular ground engagement support frame,
a guide frame bridge rotatably positioned across said support frame,
a movable transport carriage within said guide frame,
a saw mount assembly pivotally secured to said transport carriage movable from a first non-engagement position to a second material engagement position,
a saw adjustably positioned within said saw mount assembly, guide frame wheel assemblies engageable on said support frame,
transport carriage wheel assemblies engageable on a portion of said guide frame.
2. The ring saw cutting device set forth in
transport carriage support tracks and angular diverging support extensions extending from one end thereof.
3. The ring saw cutting device set forth in
4. The ring sow cutting device set forth in
5. The ring saw cutting device set forth in
vertical aligned opposing wheel set is engageable on oppositely disposed upper and lower surfaces of said around engagement support frame and said horizontally disposed wheel adjacent thereto engageable on an inner vertically aligned surface of said ground engagement support frame thereto.
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1. Technical Field
This device relates to specialized power equipment for the removal and replacement of manhole assemblies. Such equipment has been developed that simplify the removal and installation of sanitary manhole configurations including chimney reconstruction in accordance with the compliance of state and local specifications.
2. Description of Prior Art
Prior art devices of this type have been directed towards initially hand held cutters used to cut the chimney liner used to adjustably position the manhole casing on the support cone. A variety of bracket assemblies have been developed to support and guide cutting elements within the manhole. Other support mounted manhole cutting devices can be seen in combination with removal and preparation tools in U.S. Pat. Nos. 4,924,951, 6,539,987, and 6,709,064.
In U.S. Pat. No. 4,924,951 a manhole cutter is disclosed that is inserted into an existing manhole to a depth sufficient to engage and remove the manhole by clamping thereto and cutting from the inside surface.
U.S. Pat. No. 6,539,987 is a quick manhole construction method wherein a cutting unit is lowered into the manhole engaging the inside surface cuts with the removal of the manhole casing.
U.S. Pat. No. 6,709,064 claims a method and device for detaching or cutting out an embedded manhole frame having a cutter attached to the manhole performing eccentric circumferential runs along the inside thereof for removal.
An example of a commercially available device that is known which is directed towards the cutting of the plastic forms used to extend the mounting surface from the manhole “cone” and are left in place after cutting. The device is manufactured by the Whirly Gig Company shown in an informational print-out exhibit A in which a router type tool is mounted on an arm that extends from a central support shaft held by a pair of cross brackets extending outwardly over the manhole to support same.
A cutting tool to facilitate the installation of a manhole requiring the cutting of a mounting support chimney to its proper elevation and matching angular inclination to the installation street surface and a two axis planar orientation. The tool provides for both trans-dimensional and annular movement of a cutting saw positioned within by a rotatable frame and movable carriage thereon. The cutting saw is secured within the movable carriage for elevational adjustment and trans-annular movement thereabout.
Referring to
A guide frame bridge 20 is rotatably positioned on the base 11 having a pair of spaced parallel frame elements 21 and 22 with angular offset planar support extensions 21 Å and 22A extending therefrom. A pair of tubular interconnection braces 23 and 24 extend and are secured between the end frame elements 21 and 22 defining a rectangular carriage support area therewithin.
An arcuate end brace element 25 extends from the free ends of the frame extensions 21A and 22A, each with guide wheel assemblies 26 and 27 mounted angularly thereon, as best seen in
A secondary pair of guide wheel assemblies 28 and 29 extend from the frame elements 21 and 22 oppositely disposed free ends thereof. Both the guide wheel assembly pairs 26-29 each have vertically aligned opposing wheel sets 30 engageable on oppositely disposed upper and lower surfaces of the engagement lip 15 as hereinbefore described.
A single horizontally disposed wheel 30A is engageable on the inner surface 13A of the hereinbefore described base sidewall 13 in the respective wheel assemblies. It will be evident from the above description that the guide track bridge frame 20 can therefore be freely rotated 360 degrees on the base 11 with a rotational stop S extending from the interconnecting brace 24.
The frame elements 21 and 22 additionally have upstanding flanges 21B and 22B secured respectively along their outer side surfaces defining parallel carriage guide tracks.
Referring now to
A portable power saw 41 having an engine 41A from which extends an enclosed drive shaft assembly 41B and a circular saw blade 41C on its free rotatable end can be adjustably positioned for height through the tubular saw receiving fitting 39 by use of fixation fasteners F as will be well understood by those skilled in the art.
In use, as seen in
The saw mounting assembly 36 is pivotally deployed as herein before described in a vertical orientation against the stop bar 40 and the transport carriage 31 is adjustably positioned longitudinally in the guide frame track bridge 20 positioning the saw blade 41C to cut through the exposed chimney 43 which is typically made of synthetic resin material as is shown in this application illustration. The guide frame bridge 20 is then rotated within the base 11 as illustrated graphically in
It will thus be seen that a new and novel ring saw manhole cutting device has been illustrated and described and it will be app rent to those skilled in the art that various changes and modifications may be made thereto without departing from the spirit of the invention.
Patent | Priority | Assignee | Title |
11015307, | May 08 2019 | CRITEX, LLC | Road penetration and excavation system |
7703856, | Aug 31 2006 | FUELING AND SERVICE TECHNOLOGIES, INC | Manhole cover frame removal saw |
8375551, | Sep 29 2009 | ARGONICS, INC | Method for covering an above ground access opening to a conduit assembly |
8646847, | Oct 14 2009 | Coneqtec Corp.; CONEQTEC CORP | Manhole remover |
9279262, | Dec 09 2013 | ICC COMMONWEALTH CORPORATION | Chimney demolition vehicle |
ER6951, |
Patent | Priority | Assignee | Title |
4924951, | Jan 13 1989 | Manhole cutter | |
5934820, | Dec 11 1997 | MARGARETHA J HINKLE | Manhole collar assembly and method for producing same |
6131557, | Apr 22 1999 | Mixer Systems, Inc. | Two stage variable speed control for concrete saw |
6161985, | Dec 11 1997 | HINKLE, MARGARETHA J | Manhole collar assembly |
6536987, | May 30 2001 | Quick manhole/handhole construction method and related devices | |
6709064, | May 31 2002 | M. Nettek International, Inc., Technology Development & Marketing | Method and device for detaching or cutting out an embedded manhole frame |
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Nov 17 2022 | CRITES, MICHAEL | CRITEX, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 061951 | /0608 |
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